Normally, apparently, the birth rate goes down during a recession, because financial and job insecurity aren't the kind of environments that encourage a couple to throw away the condoms. But not this time.
So what's changed? Interestingly, the theory is that, with this recession coinciding with a period in which it's more usual than ever for both partners to work, it's being seen as a good time to go through maternity leave... there's simply less to lose.